<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>物理移动</title>
</head>
<body>
    <canvas id="canvas" width="500" height="500">
        not surport!
    </canvas>

    <!--<div>-->
        <!--<p><label for="widthRange">canvas width:</label> <input type="range" id="widthRange" min="0" max="100" step="1" value="500" /></p>-->
        <!--<p><label for="heightRange">canvas height:</label> <input type="range" id="heightRange" min="0" max="100" step="1" value="500" /></p>-->
    <!--</div>-->

    <!--<script src="index.js"></script>-->
    <!--<script src="ball.js"></script>-->
    <!--<script src="rebound.js"></script>-->
    <!--<script src="elastic.js"></script>-->
    <script src="curvilinear.js"></script>
</body>
</html>